Contact lenses that change the color of the iris to blue are available in nonprescription versions at websites such as You Know It and FourEyez. Those who wear prescription contact lenses can find colored contact lenses or color-enhancing lenses from the 1 800 Contacts website.
People with dark brown eyes who want to change their eye color by using contacts must choose lenses with opaque colors that totally cover their natural irises. Blue contacts are available in various shades of aqua, three-toned blue and sapphire blue. People who have blue eyes can choose from lenses that enhance their natural color. Prescription lenses are also available for those who want to change their eye color to blue.